1999 Ml 430--Using impact wrench to remove steering wheel nut - Mercedes-Benz Forum

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post #1 of 2 (permalink) Old 03-31-2013, 11:56 AM Thread Starter
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Date registered: Aug 2009
Vehicle: 1999 ML 430, 1987 190E 16V, 1971 280SL (sold), 1971 250 (sold)
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1999 Ml 430--Using impact wrench to remove steering wheel nut

I need to replace the combination switch (turn signal switch) on my 1999 ML430. I've read how difficult it can be to loosen the steering wheel hold down bolt.

I have access to an 18.8V impact driver as well as a heavy duty 1/2" air powered impact wrench. Any harm or warning about using either of these to remove the hold down bolt on the steering wheel?

Related question--I can't tell from the STAR Service DVD and I haven't started the repair. Does the bolt loosen with a 10mm hex drive in the center?

Thank you--Jim
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post #2 of 2 (permalink) Old 03-31-2013, 03:06 PM
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Howdy neighbor. I live in Orinda
When impact wrenches are big convenience, using them on precision fasteners brings a risk of messing something up.
Depends on quality 1/2 air impact can strip the lug bolts, so I can only imagine how small incident can mess up on the steering wheel.
So even technically there is nothing wrong with using powerful wrenches for LOOSENING the bolts, it needs to be proceed with caution.
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